Sparse Isotropic Regularization for Spherical Harmonic Representations of Random Fields on the Sphere

Quoc T. Le Gia, Ian H. Sloan, Robert S. Womersley +1

This paper discusses sparse isotropic regularization for a random field on the unit sphere ${\mathbb{S}}^2$ in ${\mathbb{R}}^3$, where the field is expanded in terms of a spherical h…